Weekly briefing No. 41 published 4 Oct 2026
Disclosure tracker › Disclosures in 2026
Intelligence · Disclosure tracker

Disclosures in 2026

Public breach disclosures from regulators, court filings, company notices and news reporting, each recorded with its date and a link to the original. Updated daily.

5,278
Disclosures in the tracker, all years
1,991
Of those, indexed in 2026
36
Added in October
7
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 14 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.

3,944 results · Disclosures in 2026. Clear filters

Critical1 Sep 2026
McKesson
Healthcare · 284,000,000 records
ShinyHunters extortion group claimed theft of 284 million records
1 Sep 2026
High1 Sep 2026
Revolut
Finance · Records not stated
Hackers stole hundreds of customers' data; company facing $3M ransom demand
1 Sep 2026
High1 Sep 2026
Data breach investigation
Government · Records not stated
Data breach investigation announced by FLHSMV department
1 Sep 2026
High1 Sep 2026
Canva
Technology · Records not stated
Breach affecting 424 organizations in Turkey exposing personal and corporate data
1 Sep 2026
High1 Sep 2026
Springfield Public Schools
Education · Records not stated
Sophisticated cyberattack stealing student and staff data
1 Sep 2026
Critical1 Sep 2026
CenterPoint Energy
Sector not stated · 7,490,000 records
Data breach exposing 7.49 million customer records
1 Sep 2026
High1 Sep 2026
Revolut
Finance · Records not stated
Customer data breach through fake government requests; hundreds of customers affected
1 Sep 2026
High1 Sep 2026
Luminis
Healthcare · Records not stated
Healthcare cybersecurity incident affecting Anne Arundel County hospital
1 Sep 2026
High1 Sep 2026
Canva
Technology · Records not stated
Personal and corporate data exposed affecting 424 organizations in Turkey
1 Sep 2026
Critical1 Sep 2026
Driver license information potentially accessed in data breach
Government · Records not stated
Driver license information potentially accessed in data breach
1 Sep 2026
High1 Sep 2026
Springfield Public Schools
Education · Records not stated
Student and staff data breached by cybercriminals in cyberattack
1 Sep 2026
Critical1 Sep 2026
Organisation not named
Healthcare · 727,000 records
The disclosure as indexed does not name the organisation.
French hospital breach exposed 727,000 patient and contact records
1 Sep 2026
Critical1 Sep 2026
Manchester Airport Group
Sector not stated · 8,700,000 records
Breach exposed 8.7 million customer records; 640GB data stolen and published by FulcrumSec on September 3, 2026
1 Sep 2026
Critical1 Sep 2026
Thomson Reuters
Legal · Records not stated
C-Track court management platform breach exposed sealed court records and personal data including SSNs affecting US and Canadian courts
1 Sep 2026
High1 Sep 2026
Department
Government · Records not stated
Department investigating data breach involving driver information
1 Sep 2026
High1 Sep 2026
Revolut
Finance · Records not stated
Data breach with $3M ransom demand; attacker threatening to sell stolen data
1 Sep 2026
Critical1 Sep 2026
CenterPoint Energy
Sector not stated · 7,490,000 records
7.49 million customer records stolen in data breach
1 Sep 2026
Critical1 Sep 2026
Springfield Public Schools
Education · Records not stated
Student and staff data breached; potentially includes Social Security numbers
1 Sep 2026
High1 Sep 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Spain's data protection authority experienced a data breach via autonomous AI agent
1 Sep 2026
High1 Sep 2026
xHealth
Healthcare · 118,000 records
Practice management and EHR software provider breach exposed 118,000 individuals' data
1 Sep 2026
Critical1 Sep 2026
AdaptHealth
Healthcare · 4,099,999 records
4.1 million people impacted; personal, health, and insurance information stolen
1 Sep 2026
High1 Sep 2026
MIP Holdings
Finance · Records not stated
Cyber attack exposed personal information of South African insurance customers
1 Sep 2026
Critical1 Sep 2026
IDScan
Technology · Records not stated
153 million driver's license scans stolen from cloud platform
1 Sep 2026
Critical1 Sep 2026
McKesson
Healthcare · 284,000,000 records
Data breach with 284 million records stolen by ShinyHunters extortion group
1 Sep 2026
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